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At 25 °C only 0.0500 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?
Calculate D for hemoglobin in water at 25 degrees celsius ( ? = 0.89 cP ), given that Vm= 48000 cm^3/mol for hemoglobin. Assuming the molecules are spherical and estimate the volume of a molecule as Vm/ Na.
Determine the molar ratio of hydrogen to carbon in the fuel (r), where r=y/x, and the percentage excess air used in the combustion.
Presume that the reaction of Fe3+ and SCN- produces Fe(SCN)2 (+). 5.00mL of 2.0mM Fe3+ is mixed with 5.00mL of 2.0mM SCN-. Determined the equilibrium concentrations of Fe(SCN)2(+) to be 0.3mM.
Compute the mass percent composition of nitrogen in each fertilizer: NH3, CO(NH2)2, NH4NO3, (NH4)2SO4.
what molar ratio of sodium acetate to acetic acid naachac should be used in preparing a buffer having a ph of 4.35? ka
If the 53 g aluminum block is initially at 25^circ C, what is the final temperature of the block after the evaporation of the 1.02 galcohol? Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and t..
Poisons such as sodium azide and sodium cyanide inactivate hemoglobin by irreversibly binding to the heme group of the molecule. These poisons also inactivate the electron transport chain.
What does the kinetic molecular theory of gases state about the average kinetic energy of the gas particles
A 2.476 g sample of a monoprotic acid was dissolved in wate. it took 21.36 mL of a 0.1577 M NaOH solution to neutralize the acid. calculate the molar mass of the acid.
If 4.25g of H2 over water at 25 degrees Celsius was collected that had a total pressure of 1.15 atm, explain what would be the partial pressure of the H2 collected? State the pressure of gaseous water at 25 degrees C is 23.8torr.
the manufacture of perfumes, contains 3.758 g of carbon, 0.316 g of hydrogen, and 1.251 g of oxygen. What is the empirical formula of this substance?
The steam reforming of methane is widely used in industry to make hydrogen, as given in the following reaction:CH4(g) + H2O(g) ? CO(g) + 3H2(g) a) Calculate the (approximate) enthalpy change
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